Steam-locomotive.



L T. ANIHONY,

STEAM LOCOMOT|VE.

APPLICATION map FEILB. 191s.

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J. T. ANTHONY. 'smm LOCOMOTIVE- APPLICATION HLED FEELAL I916.

Patented J 111116 12, 11917.

2 SHEETSHEET. H 4

parts 38", are openings and plugs in the rear sheet, 16, which afiord access to the upper and also provides space for a superheater or a feed water heater, shown by dotted lines, H, in Fig. 1. ,I

It is to be understood that the lower edges 7 of the plates, 11, 17, 20, 15, 30, 29, 14, 19,

13, 18, 22, and 16 are attached to respective ofthe mud ring. of the boiler, and, D, D, are longitudinal, or side, water legs of the boiler. It is to be understood that all opposed walls of the firebox and firebox shell are united by stay-bolts, 40, in the usual manner. Special attention is directed to the stay-bolts, 40, which unite the opposed walls, 29, 30 of the intermediate water leg or fire-wall,

The outer ends of the transverse water leg, B, are in free communication with the side. water legs, 'D. The top, 31, of the water leg, B, is lowest at its middle point and curves upwardly from thence to points of juncture with the side sheets-of the firebox. I prefer that the top line of the wall,

tlfe curves of the adjoining walls of the firebox. This construction of the top of the water leg, B, and the direct opening thereof into the side legs, prevents the trapping and pocketing of steam in the water leg, B. Obviously the water leg, B, provides an admirable source of water supply for all the arch tubes which lead from 1t, and the flow of water in the tubes furtherpromotes circulation in both the side legs and the cross leg of the boiler.

It will be noted that the water leg, B, joins the sides of the firebox substantially at the points of juncture between the wide and narrow portions of the firebox. It thus provides an admirable connection between the boiler sides and, in conjunction with the cross member or bridge, 25, of the firebox base or mud ring, efiectuallyholds them in correct shape against all forces tending to distort them.

As shown, the throat, A, of the boiler is of such depth that it extends downward practically to the tops of the engine frames, 5. The forward section of the mud ring, and hence the lower forward part of the firebox, conforms tothe throat, A, and occupies the space between the opposite drivers, 2. Obviously by further narrowing the B and C are the transverse water legs B shall be substantially a continuation of.

messes lower front .end of the firebox, it may be positioned between the engine frames, 5, but

in most cases the construction shown will be found to yield better results.

The narrow forward section of the mud ring extends from the throat sheets to a point rearward of the rearmost driver; that is, to a point where the flaring parts may clear the drivers. The rear section of the mud ring and firebox not being restricted or limited in width by the engine frame, may be extended laterally to any practical, extent. The height of the rear section of the mud ring above the rails, and its inclination, may also be varied within wide limits, as deemed best by the designer. This rear section which contains the grate, 32, carries the ash pan, 6. To the novel mud ring here clearly shown, the mud ring is composed of two substantially rectangular portions joined end to end and having the cross bar, 25, in common.

My invention is not restricted to a mud ring of the specific shape above described, for, as indicated in Fig. 8, the shape of the ring may be modified by giving it a more rectangular configuration to suit a combination firebox in which the juncture plates, 42, are substantially at right angles to the remainder of side sheets of the boiler. Likewise I wish it to be understood that the term rectangular as used in the specification and appended claims is intended to embrace sectional mud rings having members which are variously curved and angled.

I desire that it shall be understood that in some cases the integral bridge bar, 25, of the mud ring, or a separate bridge-member located at that point, may be used in conjunction with a' water-wall separate from the side sheets or with a refractory brick fire-wall in lieu of the illustrated wall, B.

given the name sectional mud ring. As

While my invention embraces these modificati ons, I regard the construction shown as far preferable thereto.

The man-hole, 34, which is normally tightly closed by a door or cover plate, 35,

affords easy access to the combustion chamber, F. This is of great advantage in working upon the dues and flue sheet of the boiler, and the arch tubes and other parts exposed in the chamber, F. Obviously all such work may be'done in the chamber, F, without hindrance by the ordinarily hot firebox arch, which in other constructionsis an obstacle that must be wholly or at least partly removed at such times.

To my novel firebox, consideredv as a whole, I have given the alternative names combination firebox and combined wide-' and-narrow firebox.

My invention will be found most advanincense tageous Where the fuel is supplied. by mechanical. stolters and Where pulverized coal is blown into the firebox with a blast of air. in most cases much of the coal is burned in a suspension and the long flame-Way here provided insures a degree of combustion not attainable in other locomotive fireboxesi The many other advantages of my invention will be manifest to those who are skilled in the art. For example, (1:) the great increase in firebox: volume, the marked increase in the length of the fiameway, and the ample combustion space provided;--(2) the augmenting of circulation in the boiler;(3) the retention of the boiler as an entirety in a desirable lOW position over the drivers ;(t) the nice distribution of weight upon the drivers consequent upon the construction of the boiler in the manner described ;(5) the ease and certainty with "which. the component sheets of the firebox may be assembled and their joints maintaincd;-'(8) the ease with which the parts of the boiler shell and firebox may be stayed ;(7) the removal of the flue sheet. from the proximity of the grate;--(8) the,

cutting; down of the hitherto excessive length of the fines of hlglPPOWQI locomotives:(9) the practicability of either lengthening or shortening the fire-chamber and grate, when desired, Without detrimeir tally reducing the fiance-Way, and Without necessitating the lengthening" of the flues; (10) the replacement of inefficient flue heating-surface by highly eflicient firebox heat-- ing-surface;(l1) the ability to use fines of such. short length as to be of assured heating value and of assuredbenefit to a superheater installed in connection therewith;(123) the addition of firebox heating surface by the use of the intermediate Water leg; (13) and, the easevvith which arch tubes and arches may be installed and maintained.

Many obvious modifications of my invention will readily suggest themselves to one Who is skilled in the art, and I do not limit the invention to the specific constructions herein shown and described.

Having thus described my invention, claim as new and desire to secure by Let ters Patent:-

l. lhe improvement herein l scribed comprising a mud ring composed of two sections arranged end to end and one narrower than the other,

2. The improvement herein described comprising a. mud ring composed of two sections arranged end to end and one narrower than the other, there being an intermediate cross bar which is common to both sections,

3. The improvement herein described comprising a mud ring; composed of two sections arranged end to end and one narrower than the other, there being an intermediate cross bar Which is common to both sections, and. said cross bar being of greater width the. the other parts of the mud ring.

s. The improvement herein described comprising a locomotive mud ring composed of a narrow front section of substantially rectangular form and a substantially rectangir lar Wide rear section integral with said front section.

5. The improvement herein described comprising a locomotive mud ring composed of a narrow front section of substantially rectangular form and a substantially rectangir lar Wide rear section integral With said front section, and said sections together forming prising a combined wide-and-narrow firebear, in combination with respectively Wide and narrow mud rings for the sections or portions thereof, a grate in the bottom of the Wide portion thereof, and a floor closing the bottom of the narrow portion thereof.

8. The improvement herein described comprising a combined wide-and-narrow firebolt, in combination with respectively "Wide and narrow mud rings for the sections or portions thereof, a grate in the bottom of the "wide portion thereof, a floor-plate clos ing the bottom of the narrow section, and said fioor-plate containing a normally closed man-hole.

9. The improvement herein described com prising a combined vvide-and-narrovv firebox, in combination With respectively Wide and narrow mud rings for the sections or portions thereof, a grate in the bottom of the Wide portion thereof, a floonplate clos- .ing the bottom of the narrow portion, and afire Wall erected between said portions.

10: The improvement herein described comprising a combined svide-and-narrow firebox, in combination with respectively Wide and narrow mud rings for the sections or por ions thereof, a grate in the bottom of the Wide portion thereof, a floor-plate closing the bottom of the narrow po'rtion, a fire Wall upstanding at the juncture of said portion, and said floor-plate containing a normally closed man-hole.

ll. The improvement herein described comprising a combined "WidoandnarroW boiler and firebox, in combination with re spectively Wide and narrow mud rings for the sections or portions thereof, a closure in the bottom of the Wide portion thereof, a closure the bottom of the narrow porli llll anti It El d spectively wide and narrow mud rings for the sections or portions thereof, a closure in the bottom of the wide portion thereof, a closure in the bottom of the narrow portion thereof, a water wall rising between said portions at the juncture thereof, and water circulating arch tubes extending from said wall across said wide portion,

13. The improvement herein described.

comprising a combined wideandnarrow firebox, in combination with respectively wide and narrow mud rings for the sections or portions thereof, a closure in the bottom of the wide portion thereof, a closure in the bottom of the narrow portion thereof, a cross bar between said closures and joining the sides of the firebox.-

14. The improvement herein described comprising a combined wide-and-narrow firebox, in combination with a closure in the bottom of the side portion thereof, a closure in the bottom of the narrow portion thereof, a cross bar between said closures and joining the sides of the firebox, and a transverse water leg erected on said cross bar.

15. The improvement herein described comprising a combined wide-and-narrow firebox, in combination with respectively wide and narrow mud rings for the sections or portions thereof, a closure in the bottom of the wide portion thereof, a closure in the bottom of the narrow portion thereof, a cross bar between said closures and joining the sides of the firebox, a transverse water leg erected on said cross bar, and arch tubes extending from said leg to the opposite end of said wide portion of the firebox.

16. The improvement herein described comprising a locomotive boiler containing a wide bottomed firebox section and a narrow bottomed combustion chamber section in communication therewith, and a mud ring having respectively wide and narrow portions conformed to the bottoms of said sections.

17 The improvement herein described comprising a locomotive boiler containing a wide bottomed firebox section and a narrow bottomed combustion chamber section in communication therewith, and a mud ring having respectively wide and narrow portions conformed to the bottoms of said sections and connecting the sides thereof.

18. The improvement herein describedcomprising a locomotive boiler containing a wide bottomed firebox section and a narrow bottomed combustion chamber section in communication therewith, a mud ring hav ing respectively wide and narrow portions conformed to the bottoms of said sections,

and said mud ring having a cross bar positioned at the point of juncture between said sections.

19. The improvements herein described comprising a locomotive boiler containing a wide bottomed firebox section and a narrow bottomed combustion chamber section in communication therewith, a mud ring having respectively wide and narrow portions conformed to the bottoms of said sections, said mud ring having a cross bar positioned at the point of juncture between said sections, and a transverse water leg bottomed by said cross bar and connecting the side water legs of the boiler.

20. The improvements herein described comprising a locomotive boiler containing a wide bottomed firebox section and a narrow bottomed combustion chamber section in communication therewith, a mud ring having respectively wide and narrow portions conformed to the bottoms of said sections, said mud ring having a cross bar positioned at the point of juncture between said sections, a transverse water leg bottomed by said cross bar and connecting the side water legs of the boiler, and arch tubes extending from the said leg to the opposite end of the firebox section.

21. The improvement herein described comprising a locomotive boiler containing a wide bottomed firebox section and a narrow bottomed combustion chamber section in communication therewith, a mud ring having respectively wide and narrow portions conformed to the bottoms of said sections, said mud ring having a cross bar positioned at the point of juncture between said sections, a transverse water leg-bottomed by said cross bar and connecting the side water legs of the boiler, arch tubes extending from the said legto the opposite end of the firebox section, and clean-out openings in said leg for said tubes.

22. A steam locomotive, the boiler of which contains a fire-chamber rearward of and below the tops of the drivers and having a grate which is wider than the span of the drivers, in combination with a combustion chamber, the lower part of which extends below the tops of the drivers and is of less width than the space between said drivers and a floor plate closing the other: wise open bottom of said combustion chamber.

23. A steam locomotive, the boiler of which contains a fire-chamber rearward of and below the tops of the drivers and having a grate which is wider than the span of the drivers, in combination with a combustion chamber, the lower part of which extends below the tops of the drivers and is of less width than the space between said drivers, and a floor plate closing the othertion chamber. the lower part of which ex- 10 tends below the 'tops of the drivers and is of loss width than the space between said drivers. said boiler also contalnn'lg a trans verse water leg between said chambers, 11'

floor plate closing the otherwise open bot tom of the combustion chamber, and there 16 being a man-hole in said floor plate or bottom of said combustion chamber.

In testimony whereof, I have hereunto set my hand this 31 day of January, 1916. JAMES T. ANTHONY. 

